We　propose　and　investigate　a　joint　transmitter　-　receiver　spatial　modulation　(JSM)　scheme,　which　transmits　information　by　jointly　exploiting　the　indices　of　transmit　antenna　patterns,　the　indices　of　receiver　antennas,　and　amplitude　-　phase　modulation.　The　proposed　JSM　is　capable　of　simultaneously　achieving　transmit　diversity,　receive　diversity,　and　multiplexing　gain.　In　order　to　facilitate　the　implementation　of　the　JSM　with　different　reliability-complexity　tradeoff,　two　types　of　detectors　are　introduced,　which　are　the　maximum-likelihood　detection　(MLD)　and　the　proposed　sub-optimal　detection　(SOD),　including　a　two-stage　SOD　and　a　three-stage　SOD.　In　order　to　gain　insight　into　the　characteristics　of　the　JSM,　we　analyze　the　approximate　and　asymptotic　average　bit　error　probability　of　the　JSM　systems　employing　MLD,　when　regular-scale　and　large-scale　JSM　systems　are,　respectively,　considered.　Finally,　the　performance　of　the　JSM　systems　is　investigated　with　the　aid　of　both　simulation　and　numerical　evaluation　of　our　derived　formulas.　Our　studies　show　that　the　JSM　employs　a　high　flexibility　for　implementation　and　online　configuration,　so　as　to　adapt　to　the　communications　environments　and　to　attain　the　best　possible　performance.